Thu, 06 Apr 2023 20:53:06 +0200
Set the new measured deep sleep current consumption. This is half of the Wemos D1 system.
1
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
parents:
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1 | /* |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
parents:
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2 | * Copyright (c) 2019 Ruslan V. Uss <unclerus@gmail.com> |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
parents:
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3 | * |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
parents:
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4 | * Redistribution and use in source and binary forms, with or without |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
parents:
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5 | * modification, are permitted provided that the following conditions are met: |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
parents:
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6 | * |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
parents:
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7 | * 1. Redistributions of source code must retain the above copyright notice, |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
parents:
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8 | * this list of conditions and the following disclaimer. |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
parents:
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9 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
parents:
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10 | * this list of conditions and the following disclaimer in the documentation |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
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11 | * and/or other materials provided with the distribution. |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
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12 | * 3. Neither the name of the copyright holder nor the names of itscontributors |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
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13 | * may be used to endorse or promote products derived from this software without |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
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14 | * specific prior written permission. |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
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15 | * |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
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16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
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18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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19 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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20 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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21 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
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22 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
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23 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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24 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
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25 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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26 | */ |
1c9894662795
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27 | |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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28 | /** |
1c9894662795
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29 | * @file hx711.c |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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30 | * |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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31 | * ESP-IDF driver for HX711 24-bit ADC for weigh scales |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
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32 | * |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
Michiel Broek <mbroek@mbse.eu>
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33 | * Copyright (c) 2019 Ruslan V. Uss <unclerus@gmail.com> |
1c9894662795
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Michiel Broek <mbroek@mbse.eu>
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34 | * |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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35 | * BSD Licensed as described in the file LICENSE |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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36 | */ |
1c9894662795
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37 | #include <freertos/FreeRTOS.h> |
1c9894662795
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38 | #include <freertos/task.h> |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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39 | #include <esp_timer.h> |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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40 | #include <ets_sys.h> |
1c9894662795
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41 | #include <esp_idf_lib_helpers.h> |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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42 | #include "hx711.h" |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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43 | |
1c9894662795
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44 | #define CHECK(x) do { esp_err_t __; if ((__ = x) != ESP_OK) return __; } while (0) |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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45 | #define CHECK_ARG(VAL) do { if (!(VAL)) return ESP_ERR_INVALID_ARG; } while (0) |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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46 | |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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47 | #if HELPER_TARGET_IS_ESP32 |
1c9894662795
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48 | static portMUX_TYPE mux = portMUX_INITIALIZER_UNLOCKED; |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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49 | #endif |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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50 | |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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51 | static uint32_t read_raw(gpio_num_t dout, gpio_num_t pd_sck, hx711_gain_t gain) |
1c9894662795
Added esp-idf-lib for a lot of sensors. Added the basic design for the BMP280 task.
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52 | { |
1c9894662795
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53 | #if HELPER_TARGET_IS_ESP32 |
1c9894662795
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54 | portENTER_CRITICAL(&mux); |
1c9894662795
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55 | #elif HELPER_TARGET_IS_ESP8266 |
1c9894662795
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56 | portENTER_CRITICAL(); |
1c9894662795
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57 | #endif |
1c9894662795
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58 | |
1c9894662795
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59 | // read data |
1c9894662795
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60 | uint32_t data = 0; |
1c9894662795
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61 | for (size_t i = 0; i < 24; i++) |
1c9894662795
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62 | { |
1c9894662795
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63 | gpio_set_level(pd_sck, 1); |
1c9894662795
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64 | ets_delay_us(1); |
1c9894662795
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65 | data |= gpio_get_level(dout) << (23 - i); |
1c9894662795
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66 | gpio_set_level(pd_sck, 0); |
1c9894662795
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67 | ets_delay_us(1); |
1c9894662795
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68 | } |
1c9894662795
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69 | |
1c9894662795
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70 | // config gain + channel for next read |
1c9894662795
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71 | for (size_t i = 0; i <= gain; i++) |
1c9894662795
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72 | { |
1c9894662795
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73 | gpio_set_level(pd_sck, 1); |
1c9894662795
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74 | ets_delay_us(1); |
1c9894662795
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75 | gpio_set_level(pd_sck, 0); |
1c9894662795
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76 | ets_delay_us(1); |
1c9894662795
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77 | } |
1c9894662795
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78 | |
1c9894662795
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79 | #if HELPER_TARGET_IS_ESP32 |
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80 | portEXIT_CRITICAL(&mux); |
1c9894662795
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81 | #elif HELPER_TARGET_IS_ESP8266 |
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82 | portEXIT_CRITICAL(); |
1c9894662795
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83 | #endif |
1c9894662795
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84 | |
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85 | return data; |
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86 | } |
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87 | |
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88 | /////////////////////////////////////////////////////////////////////////////// |
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89 | |
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90 | esp_err_t hx711_init(hx711_t *dev) |
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91 | { |
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92 | CHECK_ARG(dev); |
1c9894662795
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93 | |
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94 | CHECK(gpio_set_direction(dev->dout, GPIO_MODE_INPUT)); |
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95 | CHECK(gpio_set_direction(dev->pd_sck, GPIO_MODE_OUTPUT)); |
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96 | |
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97 | CHECK(hx711_power_down(dev, false)); |
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98 | |
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99 | return hx711_set_gain(dev, dev->gain); |
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100 | } |
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101 | |
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102 | esp_err_t hx711_power_down(hx711_t *dev, bool down) |
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103 | { |
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104 | CHECK_ARG(dev); |
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105 | |
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106 | CHECK(gpio_set_level(dev->pd_sck, down)); |
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107 | vTaskDelay(1); |
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108 | |
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109 | return ESP_OK; |
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110 | } |
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111 | |
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112 | esp_err_t hx711_set_gain(hx711_t *dev, hx711_gain_t gain) |
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113 | { |
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114 | CHECK_ARG(dev && gain <= HX711_GAIN_A_64); |
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115 | |
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116 | CHECK(hx711_wait(dev, 200)); // 200 ms timeout |
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117 | |
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118 | read_raw(dev->dout, dev->pd_sck, gain); |
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119 | dev->gain = gain; |
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120 | |
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121 | return ESP_OK; |
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122 | } |
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123 | |
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124 | esp_err_t hx711_is_ready(hx711_t *dev, bool *ready) |
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125 | { |
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126 | CHECK_ARG(dev && ready); |
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127 | |
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128 | *ready = !gpio_get_level(dev->dout); |
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129 | |
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130 | return ESP_OK; |
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131 | } |
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132 | |
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133 | esp_err_t hx711_wait(hx711_t *dev, size_t timeout_ms) |
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134 | { |
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135 | uint64_t started = esp_timer_get_time() / 1000; |
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136 | while (esp_timer_get_time() / 1000 - started < timeout_ms) |
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137 | { |
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138 | if (!gpio_get_level(dev->dout)) |
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139 | return ESP_OK; |
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140 | vTaskDelay(1); |
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141 | } |
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142 | |
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143 | return ESP_ERR_TIMEOUT; |
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144 | } |
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145 | |
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146 | esp_err_t hx711_read_data(hx711_t *dev, int32_t *data) |
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147 | { |
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148 | CHECK_ARG(dev && data); |
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149 | |
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150 | uint32_t raw = read_raw(dev->dout, dev->pd_sck, dev->gain); |
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151 | if (raw & 0x800000) |
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152 | raw |= 0xff000000; |
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153 | *data = *((int32_t *)&raw); |
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154 | |
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155 | return ESP_OK; |
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156 | } |
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157 | |
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158 | esp_err_t hx711_read_average(hx711_t *dev, size_t times, int32_t *data) |
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159 | { |
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160 | CHECK_ARG(dev && times && data); |
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161 | |
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162 | int32_t v; |
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163 | *data = 0; |
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164 | for (size_t i = 0; i < times; i++) |
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165 | { |
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166 | CHECK(hx711_wait(dev, 200)); |
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167 | CHECK(hx711_read_data(dev, &v)); |
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168 | *data += v; |
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169 | } |
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170 | *data /= (int32_t) times; |
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171 | |
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172 | return ESP_OK; |
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173 | } |